| Betegnelse: | Eksempel: | Tierpotens: |
| Exa | 1018 | |
| Peta | PetaWatt - PW | 1015 |
| Tera | TeraWatt - TW | 1012 |
| Giga | GigaWatt - GW | 109 |
| Mega | MegaWatt - MW | 106 |
| Kilo | KiloWatt -KW | 103 |
| milli | millimeter - mm | 10-3 |
| mikro | mikrometer - µm | 10-6 |
| nano | nanometer - nm | 10-9 |
| piko | 10-12 | |
| femto | 10-15 | |
| atto | attoJoule - aJ | 10-18 |